DRAFT: Implement IntRangeSet class to be used for IMAP ActiveSync#26

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horde:FRAMEWORK_6_0from

horde6:int_range_set

Commits on Apr 6, 2026

DRAFT: Implement IntRangeSet class to be used for IMAP ActiveSync
amulet1
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Commits on Apr 7, 2026

Switched to flat ranges (this improves memory usage significantly)
amulet1
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Commits on Apr 8, 2026

O(log n) binary search with lowerBound cache for O(1) sequential/repeated lookups
amulet1
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